Over 0–100 km/h, 840i Convertible G15 wins (5,57 s vs 7,72 s).
Performance comparison
Simulated drag race 0 → 1,000 m in real time. Synchronised speed counters and stopwatch. Physics calibration on 7 manufacturer measurements.
Simulation
Calibration
Physics model calibrated on manufacturer splits. The limited top speed is not the real aerodynamic top speed of the vehicles.
| 840i Convertible G15 | A5 Avant | |
|---|---|---|
| 0–100 km/h | 5,57 s−2,15 s | 7,72 s |
| 400 m standing start | 13,79 s−1,92 s | 15,71 s |
| 1,000 m standing start | 24,82 s−3,12 s | 27,94 s |
| Top speed (electronically limited) | 250 km/h+5 km/h | 245 km/h |
| Power-to-weight ratio | 5,53 kg/hpbetter ratio | 8,38 kg/hp |
Standing-start drag race, calibrated on manufacturer splits. The gap shows at each stage.
Simulated performance at each stage. Winner in green.
| Palier | 840i Convertible G15 | A5 Avant |
|---|---|---|
| 0–30 km/h | 1,54 s | 2,12 s |
| 0–50 km/h | 2,50 s | 3,53 s |
| 0–80 km/h | 4,11 s | 5,76 s |
| 0–100 km/h | 5,57 s | 7,72 s |
| 0–120 km/h | 7,39 s | 10,23 s |
| 0–160 km/h | 12,34 s | 17,35 s |
| 0–200 km/h | 19,98 s | 29,43 s |
| 400 m standing start | 13,79 s | 15,71 s |
| 1,000 m standing start | 24,82 s | 27,94 s |
| Top speed limited | 250 km/h | 245 km/h |
Manufacturer technical specifications. The power-to-weight ratio is the key physical factor in a drag race.
| Characteristic | Value | Detail |
|---|---|---|
| Power | 333 hp | 6 cyl |
| Torque | 500 Nm | |
| Weight | 1 840 kg | manufacturer kerb weight |
| Drivetrain | - | |
| Gearbox | 8-speed Steptronic |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 204 hp | Pending |
| Torque | 340 Nm | |
| Weight | 1 710 kg | manufacturer kerb weight |
| Drivetrain | Traction | |
| Gearbox | 7-speed S tronic |
Off the line, the 840i Convertible hits 100 km/h in 5.57 s versus 7.72 s for the A5 Avant. At this point, the 840i Convertible leads by 2.15 s and sits roughly 22 m ahead.
At 200 metres, the 840i Convertible is doing 136 km/h against 122 km/h for the A5 Avant. The gap is 1.38 s. The challenger starts to claw back ground.
At 400 metres standing start, the 840i Convertible crosses the line in 13.79 s versus 15.70 s. The 1.91 s gap represents roughly 78 m of track - a gap visible to the naked eye.
Past 400 metres, the 840i Convertible continues to build its lead. At 600 metres, it runs at 190 km/h versus 172 km/h. At 1,000 metres, the 840i Convertible finishes in 24.82 s versus 27.94 s, with a 3.12 s lead. Both vehicles have similar top speeds (250 (i.e. 155 mph - industry threshold) vs 245 km/h), preventing any comeback.
Both rivals are electronically governed, but not at the same level: the 840i Convertible is capped at 250 (i.e. 155 mph - industry threshold) km/h, the A5 Avant at 245 km/h. This isn’t a physical engine limit - it’s a manufacturer choice, usually for tyre safety or homologation reasons. Neither car reaches its true aerodynamic top speed.
With two combustion powertrains, the difference comes down to power-to-weight ratio (5.53 kg/hp vs 8.38 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 11.72 seconds. The 2.15 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Swap one of the two models to explore an equivalent duel in the same segment.
Over 0–100 km/h, 840i Convertible G15 wins (5,57 s vs 7,72 s).
840i Convertible G15 goes from 0 to 100 km/h in 5,57 seconds (calibrated simulation).
840i Convertible G15: 333 hp, ratio 5,53 kg/hp. A5 Avant: 204 hp, ratio 8,38 kg/hp.
840i Convertible G15: 250 km/h. A5 Avant: 245 km/h.